Fuel-supply system for explosive-engines.



H. E. WELLER.

FUEL SUPI LY SYSTEM FOR EXPLOSIVE ENGINES.

APPLICATION FILED AUGJO. 19n- RENEWED SEPT 4. 1918.

1,283,385. Q Patented Oct. 29, 1918.

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HOWARD E. WELLER, OF FOWLER, KAN SAS.

Specification of Letters Patent.

FUEL-SUPPLY SYSTEM FOR EXPLOSIVE-ENGINES.

I Patented Oct. 29, 1918.

ApplicationfiledzAugawt 10, 1917, Serial No. 185,539. Renewed September 4, 1918. Serial No. 252,648.

To all whom it may concern: 1

Be it known that 1, HOWARD E. WELLER, a citizen of the United States, residing at Fowler, in the county of Meade and State of Kansas, have invented new and useful Improvements in Fuel-Supply Systems for Ex plosive-Engines, of which-the following is a specification.

This invention comprehends the provision ofan auxiliary fuel tank utilized in a fuel supply system for explosive engines, for the chief purpose of maintaining a constant pressure on the carbureter, with a view of eliminating to a large extent carbureter adjustments.

Other objects and advantages will appear as the nature of the invention is better understood from the following detail description when taken in connection with the accompanying drawing, the invention residing in the construction, combination and arrangement of parts as claimed.

The figure in the drawing illustrates a vertical sectionalview through the auxiliary fuel tank.

Referring more particularly to the drawing in detail 10 indicates a liquid fuel containing air-tight tank constituting the main source of supply, while the auxiliary fuel tank forming the subject matter of my invention is indicated at 11. The auxiliary tank is preferably constructed of transparent material such as glass or the like, and has a substantially cone-shaped lower extremity 12, the upper end of the auxiliary tank being rounded to facilitate maintaining the latter in a clean condition. A pipe 14: extends from the tank 10 and is coupled at 15 to a branch 16, which latter depends from the pipe 14 through a suitable opening in the top of the auxiliary tank 11. The pipe 14 is utilized to convey the liquid fuel from the tank 10 into the auxiliary tank 11, and a valve 17 is provided to control the communication between the respective tanks.

Leading from the auxiliary tank 11 at an appropriate point in its length, to the carbureter of the explosive engine is a fuel supply pipe 18, and it will be noted that the extremity of this pipe disposed within the auxiliary fuel tank 11, has its extremity curved downwardly as at19 so that the foreign matter contained within the fuel has little chance of entering the pipe 18, and being conveyed to the carbureter. Thus considerable trouble and inconvenience is elimi- I glass which permits the foreign matter contained in the fuel to be readily and easily detected, especially when this foreign matter settles at the bottom of the tank. The vertex of the cone-shaped bottom 12 is provided with an outlet opening through which this foreign matter can be easily drained from the tank 11, a suitable valve 20 being located within the opening for controlling the drain passage. It is of course understood that the draining of the foreign matter from the auxiliary tank 11 takes place before this foreign matter has an opportunity to reach the level of the intake extremity 19 of the pipe leading to the carburetor. A valve 21 is located within the pipe 18 at the most appropriate point, so that the supply of fuel to the engine may be cut off when use of the engine is no longer desired. It will be further observed that the valve 17 may be closed while the storage tank 10 is being filled.

It will be observed that the branch 16 of the supply pipe 14 terminates adjacent the upper extremity of the tank 11, and when the fuel is being conveyed from the main reservoir 10 into the auxiliary tank 11, a vacuum is created which draws air into the auxiliary tank 11 through the air intake pipe 22 projecting from the tank 11 at a point above the discharge extremity of the branch 16.. The air entering the tank 11 through the pipe 22 is conveyed through the branch 16 and pipe 14: into the tank 10 forcing the liquid fuel within the latter to continue to flow through the pipe 14 into the auxiliary tank 11, until the height of the liquid within the latter seals the lower end of the branch 16, at which time the flow of liquid fuel from the tank 10 ceases.

The tank 11 is provided with spaced annular recesses 23 to receive clamping bands or rings 24:, which are designed to support the tank 11 from a wall, a part of the engine structure or any other suitable place. The 7 it will quickly evaporate and also eliminates spilling of fuel while transferring the same from a barrel to an auxiliary tank.

While it is believed that from the foregoing description the nature and advantages of the invention will be readily apparent I desire to have it understood that what is herein shown and described constitutes the preferred embodiment of the invention, to which I do not limit myself, and that such changes may be resorted to when desired as fall within the scope of what is claimed.

What is claimed is 2-- V A fuel supply system for explosive engines comprising an air tight fuel tank, an auxiliary tank a valved pipe for conducting the contents of the first mentioned tank into the auxiliary tank, said auxiliary tank having a substantially cone shaped bottom with an opening in the apex thereof, a valve arranged in said opening whereby the sediment and foreign matter in the fuel can be drained off, an air intake pipe communicating with the auxiliary tank at a point above the highest level of the contents thereof, a supply pipe projecting laterally from the tank at an appropriate point in the length of the latter, a valve in the supply'pipe, and the innermost end of the supply pipe being well positioned within theinterior of the auxiliary tank and turned downwardly as and for the purpose specified.

In testimony'whereof l aflix my signature.

HOWARD E. WELLER.

Gopiesof'this patent may be obtained for five cents each, by addressing the Commissioner oflatents,

' Washington, I). G. i 

